基于回歸模型預(yù)測(cè)的民勤綠洲地下水位動(dòng)態(tài)驅(qū)動(dòng)因子分析
發(fā)布時(shí)間:2018-09-19 15:22
【摘要】:基于民勤綠洲近15a的地下水位實(shí)測(cè)數(shù)據(jù),系統(tǒng)分析了綠洲地下水位的年際變化動(dòng)態(tài),并通過(guò)SPSS分析軟件對(duì)引起綠洲地下水位變動(dòng)的8個(gè)潛在變化環(huán)境因子進(jìn)行相關(guān)分析和多元回歸分析,建立了地下水位動(dòng)態(tài)初步評(píng)價(jià)的回歸模型。結(jié)果表明:(1)綠洲地下水位動(dòng)態(tài)表現(xiàn)為人類活動(dòng)強(qiáng)烈干擾下的地下水位逐年下降和地下水位不均衡;(2)回歸模型顯示,地下水開(kāi)采量、糧食作物種植面積和人口規(guī)模是影響民勤綠洲地下水動(dòng)態(tài)變化的重要限制因子,且地下水開(kāi)采量是絕對(duì)主導(dǎo)性因子。
[Abstract]:Based on the measured data of groundwater level in Minqin oasis in recent 15 years, the interannual variation of groundwater level in Minqin oasis is analyzed systematically. Based on the correlation analysis and multiple regression analysis of eight potential environmental factors which cause the change of groundwater level in oasis, a regression model for preliminary evaluation of groundwater level is established by using SPSS software. The results show that: (1) the groundwater level in oasis decreases year by year and the groundwater level is unbalanced under the strong disturbance of human activities, and (2) the regression model shows that the groundwater exploitation rate, Grain crop planting area and population scale are the important limiting factors which influence the dynamic change of groundwater in Minqin oasis, and groundwater exploitation is the absolute dominant factor.
【作者單位】: 中國(guó)科學(xué)院寒區(qū)旱區(qū)環(huán)境與工程研究所;中國(guó)科學(xué)院大學(xué);蘭州大學(xué)哲學(xué)社會(huì)學(xué)院;
【基金】:中國(guó)科學(xué)院創(chuàng)新國(guó)際團(tuán)隊(duì)項(xiàng)目(Y42AC71001)資助
【分類號(hào)】:P641
本文編號(hào):2250521
[Abstract]:Based on the measured data of groundwater level in Minqin oasis in recent 15 years, the interannual variation of groundwater level in Minqin oasis is analyzed systematically. Based on the correlation analysis and multiple regression analysis of eight potential environmental factors which cause the change of groundwater level in oasis, a regression model for preliminary evaluation of groundwater level is established by using SPSS software. The results show that: (1) the groundwater level in oasis decreases year by year and the groundwater level is unbalanced under the strong disturbance of human activities, and (2) the regression model shows that the groundwater exploitation rate, Grain crop planting area and population scale are the important limiting factors which influence the dynamic change of groundwater in Minqin oasis, and groundwater exploitation is the absolute dominant factor.
【作者單位】: 中國(guó)科學(xué)院寒區(qū)旱區(qū)環(huán)境與工程研究所;中國(guó)科學(xué)院大學(xué);蘭州大學(xué)哲學(xué)社會(huì)學(xué)院;
【基金】:中國(guó)科學(xué)院創(chuàng)新國(guó)際團(tuán)隊(duì)項(xiàng)目(Y42AC71001)資助
【分類號(hào)】:P641
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